[security-announce] libpng: Security update

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Enea Linux Security Advisory
=========================================================
Product/package: libpng-1.6.8
Severity: Important
Issue date: 2015-02-24
CVE Names: CVE-2015-0973 (duplicate of CVE-2014-9495)
Layer: meta
=========================================================
A security patch that fixes a heap-based overflow vulnerability
in the png_combine_row() function of the libpng library, when
very large interlaced images were used, is now available at
http://linux.enea.com/4.0/patches:
README file: 0045-libpng16-CVE-2015-0973.patch
Patch file: 0045-libpng16-CVE-2015-0973.patch
Description
===========
Buffer overflow in the png_read_IDAT_data function in pngrutil.c in
libpng before 1.5.21 and 1.6.x before 1.6.16 allows context-dependent
attackers to execute arbitrary code via IDAT data with a large width.
References
==========
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0973http://seclists.org/oss-sec/2014/q4/1133
How to apply the patches
=======================
- - Preparation
Make sure that you have an installation of Enea Linux and have
applied the existing patches in the right order
wget http://linux.enea.com/4.0/Enea-Linux-4.0.tar.gz
tar zxf Enea-Linux-4.0.tar.gz
cd Enea-Linux-4.0/poky/
<Fetch and apply the existing patches >
- - Fetch and apply the new patch
wget http://linux.enea.com/4.0/patches/0045-libpng16-CVE-2015-0973.patch
patch -p1 < ./0045-libpng16-CVE-2015-0973.patch
If you have any questions regarding the security patches and security
updates please contact security at enea.com.
Enea Security Team
Sona Sarmadi
Mobile: +46 70 971 4475
www.enea.com
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